The organization uses a third-party phishing reporting tool in Outlook. They do not want users to use the built-in Microsoft Report button in Outlook. In this article, you will learn how to remove the Microsoft Report button from Outlook and Outlook on the web.
Table of contents
Outlook built-in report button
This is what the Microsoft Report button looks like in Outlook on the web.


This is what the Microsoft Report button looks like in Outlook.


Disable Microsoft Report button in Outlook
To disable the Microsoft Report button in Outlook and Outlook on the web, follow the steps below:
- Sign in to Microsoft Defender portal.
- Expand System.
- Click Settings >Email & collaboration.


- Click User reported settings.
- Select Use a non-Microsoft add-in button.


- Add the administrator or IT support mailbox.
- Click Save.


Disable Microsoft Report button in Outlook using PowerShell
To disable the Microsoft Report button in Outlook and Outlook on the web using PowerShell, follow the steps below:
- Install Exchange Online PowerShell.
- Connect to Exchange Online PowerShell.
Connect-ExchangeOnline
- Run the commands below to disable the Microsoft Report button.
$email = "itsupport@exoip.com"
Set-ReportSubmissionPolicy -Identity DefaultReportSubmissionPolicy -EnableThirdPartyAddress $true -ReportJunkAddresses $email -ReportNotJunkAddresses $email -ReportPhishAddresses $email -ThirdPartyReportAddresses $email
- Run the Get-ReportSubmissionPolicy cmdlet to verify the values.
Get-ReportSubmissionPolicy -Identity DefaultReportSubmissionPolicy
Verify Microsoft Report button removal
Verify that the Microsoft Report button has been successfully removed in Outlook and Outlook on the web.
Note: Wait 15 minutes for the changes to take effect.
This is what it looks like in Outlook on the web after you remove the Microsoft Report button.


This is what it looks like in Outlook after you remove the Microsoft Report button.


That’s it!
Read more: How to Disable access to install Office add-ins »
Conclusion
You learned how to remove the Microsoft Report button from Outlook and Outlook on the web. Go to the user reported settings in Microsoft Defender and select the option to use a non-Microsoft add-in for Outlook. Allow 15 minutes for the changes to take effect.
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